:root {
            --primary: #00C853;
            --primary-dark: #00E676;
            --primary-light: #E8F5E9;
            --dark: #121824;
            --text-main: #1F2937;
            --text-muted: #4B5563;
            --bg-light: #F4F6F8;
            --bg-white: #FFFFFF;
            --border-color: #E5E7EB;
            --accent: #10B981;
            --transition: all 0.3s ease;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: var(--text-main);
            background-color: var(--bg-light);
            line-height: 1.6;
        }

        a {
            color: var(--primary-dark);
            text-decoration: none;
            transition: var(--transition);
        }

        a:hover {
            color: var(--accent);
        }

        /* 布局容器 */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        section {
            padding: 80px 0;
        }

        .section-title {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-title h2 {
            font-size: 2.2rem;
            color: var(--dark);
            position: relative;
            display: inline-block;
            padding-bottom: 15px;
        }

        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background-color: var(--primary);
            border-radius: 2px;
        }

        .section-title p {
            color: var(--text-muted);
            margin-top: 15px;
            font-size: 1.1rem;
        }

        /* 顶部导航 */
        header {
            background-color: rgba(255, 255, 255, 0.95);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
            backdrop-filter: blur(10px);
        }

        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 70px;
        }

        .logo-box {
            display: flex;
            align-items: center;
        }

        .ai-page-logo {
            max-height: 45px;
            width: auto;
        }

        .nav-menu {
            display: flex;
            gap: 20px;
            list-style: none;
        }

        .nav-link {
            font-weight: 500;
            color: var(--text-main);
            padding: 8px 12px;
            border-radius: 4px;
        }

        .nav-link:hover {
            color: var(--primary);
            background-color: var(--primary-light);
        }

        .nav-btn-group {
            display: flex;
            gap: 10px;
            align-items: center;
        }

        .btn {
            display: inline-block;
            padding: 10px 22px;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            border: none;
            text-align: center;
        }

        .btn-primary {
            background-color: var(--primary);
            color: white;
        }

        .btn-primary:hover {
            background-color: #00B0FF;
            color: white;
            box-shadow: 0 4px 14px rgba(0, 200, 83, 0.3);
            transform: translateY(-2px);
        }

        .btn-outline {
            background-color: transparent;
            border: 2px solid var(--primary);
            color: var(--primary-dark);
        }

        .btn-outline:hover {
            background-color: var(--primary-light);
            transform: translateY(-2px);
        }

        /* 移动端菜单按钮 */
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 6px;
            cursor: pointer;
            border: none;
            background: transparent;
        }

        .menu-toggle span {
            width: 25px;
            height: 3px;
            background-color: var(--text-main);
            transition: var(--transition);
        }

        /* Hero首屏 - 严禁出现任何图片 */
        .hero {
            background: radial-gradient(circle at 10% 20%, #E8F5E9 0%, #FFFFFF 90%);
            padding: 120px 0 100px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -20%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: rgba(0, 200, 83, 0.15);
            border-radius: 50%;
            filter: blur(80px);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
            margin: 0 auto;
        }

        .hero-tag {
            display: inline-block;
            padding: 6px 16px;
            background-color: var(--primary-light);
            color: var(--primary);
            border-radius: 30px;
            font-weight: 700;
            font-size: 0.9rem;
            margin-bottom: 20px;
            border: 1px solid rgba(0, 200, 83, 0.3);
        }

        .hero h1 {
            font-size: 3rem;
            line-height: 1.25;
            color: var(--dark);
            margin-bottom: 24px;
            font-weight: 800;
        }

        .hero h1 span {
            color: var(--primary);
        }

        .hero p {
            font-size: 1.25rem;
            color: var(--text-muted);
            margin-bottom: 40px;
        }

        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        /* 数据指标卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: -50px;
            position: relative;
            z-index: 10;
        }

        .stat-card {
            background-color: var(--bg-white);
            border-radius: 12px;
            padding: 30px 20px;
            text-align: center;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            border-bottom: 4px solid var(--primary);
            transition: var(--transition);
        }

        .stat-card:hover {
            transform: translateY(-5px);
        }

        .stat-card h3 {
            font-size: 2.2rem;
            color: var(--primary);
            margin-bottom: 5px;
            font-weight: 800;
        }

        .stat-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        /* 服务能力卡片 (全平台AIGC服务) */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .service-card {
            background-color: var(--bg-white);
            border-radius: 12px;
            padding: 40px 30px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.02);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .service-card:hover {
            border-color: var(--primary);
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 200, 83, 0.1);
        }

        .service-icon {
            width: 60px;
            height: 60px;
            background-color: var(--primary-light);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 25px;
            color: var(--primary);
            font-size: 1.8rem;
        }

        .service-card h3 {
            font-size: 1.3rem;
            margin-bottom: 15px;
            color: var(--dark);
        }

        .service-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        /* 标签云 - 支持的AI模型 */
        .tag-cloud-wrapper {
            margin-top: 50px;
            background-color: var(--bg-white);
            padding: 40px;
            border-radius: 16px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.02);
        }

        .tag-cloud-title {
            text-align: center;
            margin-bottom: 25px;
            font-size: 1.2rem;
            color: var(--text-main);
            font-weight: 700;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
        }

        .tag-item {
            padding: 8px 16px;
            background-color: var(--bg-light);
            color: var(--text-main);
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .tag-item:hover {
            background-color: var(--primary);
            color: white;
            border-color: var(--primary);
            transform: scale(1.05);
        }

        /* 一站式AIGC制作 */
        .production-split {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .production-list {
            list-style: none;
        }

        .production-item {
            margin-bottom: 25px;
            padding-left: 30px;
            position: relative;
        }

        .production-item::before {
            content: "✓";
            position: absolute;
            left: 0;
            top: 0;
            width: 20px;
            height: 20px;
            background-color: var(--primary);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            font-weight: bold;
        }

        .production-item h3 {
            font-size: 1.1rem;
            color: var(--dark);
            margin-bottom: 5px;
        }

        .production-item p {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        .image-gallery {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .gallery-img-container {
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 8px 24px rgba(0,0,0,0.08);
            aspect-ratio: 16/10;
        }

        .gallery-img-container img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

        .gallery-img-container img:hover {
            transform: scale(1.05);
        }

        /* 解决方案与服务网络 */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .solution-card {
            background-color: var(--bg-white);
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.02);
            border-top: 3px solid var(--primary);
        }

        .solution-card h3 {
            margin-bottom: 15px;
            color: var(--dark);
        }

        .network-section {
            background-color: var(--dark);
            color: white;
        }

        .network-section .section-title h2 {
            color: white;
        }

        .network-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 25px;
            text-align: center;
        }

        .network-card {
            background-color: rgba(255, 255, 255, 0.05);
            padding: 30px 20px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .network-card h4 {
            color: var(--primary);
            font-size: 1.2rem;
            margin-bottom: 10px;
        }

        /* 标准化流程与步骤 */
        .steps-container {
            display: flex;
            justify-content: space-between;
            gap: 20px;
            margin-top: 40px;
        }

        .step-item {
            flex: 1;
            text-align: center;
            position: relative;
        }

        .step-num {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background-color: var(--primary);
            color: white;
            font-size: 1.3rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px auto;
            box-shadow: 0 0 0 8px var(--primary-light);
        }

        .step-item h3 {
            font-size: 1.1rem;
            margin-bottom: 10px;
            color: var(--dark);
        }

        .step-item p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 案例展示区 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .case-card {
            background-color: var(--bg-white);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 6px 20px rgba(0,0,0,0.03);
            border: 1px solid var(--border-color);
        }

        .case-img-box {
            position: relative;
            aspect-ratio: 4/3;
            overflow: hidden;
        }

        .case-img-box img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .case-info {
            padding: 25px;
        }

        .case-tag {
            font-size: 0.75rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: var(--primary);
            font-weight: 700;
            margin-bottom: 8px;
            display: inline-block;
        }

        .case-info h3 {
            font-size: 1.2rem;
            margin-bottom: 10px;
            color: var(--dark);
        }

        .case-info p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* 对比评测 - 突出 9.9 高分 */
        .evaluation-box {
            background-color: var(--bg-white);
            border-radius: 16px;
            padding: 50px 40px;
            box-shadow: 0 10px 40px rgba(0,0,0,0.04);
            border: 1px solid var(--border-color);
        }

        .score-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 40px;
            border-bottom: 1px solid var(--border-color);
            padding-bottom: 30px;
            flex-wrap: wrap;
            gap: 20px;
        }

        .score-left h3 {
            font-size: 1.8rem;
            color: var(--dark);
        }

        .score-right {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .score-num {
            font-size: 3.5rem;
            font-weight: 900;
            color: var(--primary);
            line-height: 1;
        }

        .score-stars {
            display: flex;
            flex-direction: column;
        }

        .stars {
            color: #FFC107;
            font-size: 1.5rem;
        }

        .rating-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 600;
        }

        .table-responsive {
            width: 100%;
            overflow-x: auto;
        }

        .evaluation-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 600px;
        }

        .evaluation-table th, .evaluation-table td {
            padding: 16px 20px;
            border-bottom: 1px solid var(--border-color);
        }

        .evaluation-table th {
            background-color: var(--bg-light);
            font-weight: 700;
            color: var(--dark);
        }

        .evaluation-table tr:hover {
            background-color: var(--primary-light);
        }

        .highlight-row {
            background-color: rgba(0, 200, 83, 0.03);
            font-weight: 600;
        }

        .highlight-row td:nth-child(2) {
            color: var(--primary);
        }

        /* Token 比价 */
        .price-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .price-card {
            background-color: var(--bg-white);
            border-radius: 12px;
            padding: 40px 30px;
            border: 1px solid var(--border-color);
            text-align: center;
            position: relative;
            transition: var(--transition);
        }

        .price-card.popular {
            border-color: var(--primary);
            box-shadow: 0 10px 30px rgba(0, 200, 83, 0.1);
            transform: translateY(-5px);
        }

        .popular-badge {
            position: absolute;
            top: -15px;
            left: 50%;
            transform: translateX(-50%);
            background-color: var(--primary);
            color: white;
            padding: 5px 15px;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 700;
        }

        .price-card h3 {
            font-size: 1.4rem;
            margin-bottom: 15px;
            color: var(--dark);
        }

        .price-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 25px;
        }

        .price-features {
            list-style: none;
            margin-bottom: 30px;
            text-align: left;
        }

        .price-features li {
            padding: 10px 0;
            border-bottom: 1px solid var(--border-color);
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* 培训版块 */
        .training-split {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .certificate-info h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
            color: var(--dark);
        }

        .cert-list {
            margin: 25px 0;
            list-style: none;
        }

        .cert-list li {
            padding: 12px 0;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 600;
        }

        .cert-list li::before {
            content: "🛡️";
        }

        /* 提交表单区 */
        .form-section {
            background-color: var(--primary-light);
        }

        .form-wrapper {
            max-width: 650px;
            margin: 0 auto;
            background-color: var(--bg-white);
            padding: 40px;
            border-radius: 16px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: var(--text-main);
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1.5px solid var(--border-color);
            border-radius: 8px;
            font-size: 1rem;
            outline: none;
            transition: var(--transition);
        }

        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(0, 200, 83, 0.15);
        }

        select.form-control {
            appearance: none;
            background-image: url("data:image/svg+xml;utf8,<svg fill='black' height='24' viewBox='0 0 24 24' width='24' xmlns='http://www.w3.org/2000/svg'><path d='M7 10l5 5 5-5z'/><path d='M0 0h24v24H0z' fill='none'/>");
            background-repeat: no-repeat;
            background-position: right 12px center;
        }

        /* 客户评论卡片 */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .review-card {
            background-color: var(--bg-white);
            padding: 30px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 15px rgba(0,0,0,0.01);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .review-text {
            font-style: italic;
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 20px;
        }

        .review-user {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .user-avatar-placeholder {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background-color: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
        }

        .user-info h4 {
            font-size: 0.95rem;
            color: var(--dark);
        }

        .user-info span {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* FAQ 折叠面板 */
        .faq-wrapper {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background-color: var(--bg-white);
            border-radius: 8px;
            margin-bottom: 12px;
            border: 1px solid var(--border-color);
            overflow: hidden;
        }

        .faq-question {
            padding: 20px 24px;
            font-weight: 700;
            color: var(--dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            transition: var(--transition);
        }

        .faq-question:hover {
            background-color: var(--primary-light);
        }

        .faq-question::after {
            content: "+";
            font-size: 1.5rem;
            color: var(--primary);
            transition: var(--transition);
        }

        .faq-item.active .faq-question::after {
            content: "−";
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            padding: 0 24px;
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        .faq-item.active .faq-answer {
            padding: 0 24px 20px 24px;
        }

        /* 术语百科与自助排查 */
        .tech-box {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .tech-card {
            background-color: var(--bg-white);
            padding: 35px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
        }

        .tech-card h3 {
            margin-bottom: 20px;
            color: var(--dark);
            border-left: 4px solid var(--primary);
            padding-left: 12px;
        }

        .tech-list {
            list-style: none;
        }

        .tech-list li {
            padding: 10px 0;
            border-bottom: 1px dashed var(--border-color);
        }

        .tech-list strong {
            color: var(--primary-dark);
        }

        /* 最新文章与行业资讯 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .news-card {
            background-color: var(--bg-white);
            border-radius: 8px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: 0 3px 10px rgba(0,0,0,0.01);
            transition: var(--transition);
        }

        .news-card:hover {
            transform: translateY(-3px);
            border-color: var(--primary);
        }

        .news-card-body {
            padding: 20px;
        }

        .news-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: block;
            margin-bottom: 8px;
        }

        .news-title {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--dark);
            line-height: 1.4;
        }

        /* 加盟代理板块 */
        .agent-section {
            background: linear-gradient(135deg, var(--dark) 0%, #1e293b 100%);
            color: white;
            border-radius: 20px;
            padding: 60px;
            margin-top: 40px;
        }

        .agent-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .agent-content h3 {
            font-size: 2rem;
            margin-bottom: 20px;
            color: var(--primary);
        }

        .agent-content p {
            color: #94a3b8;
            margin-bottom: 30px;
        }

        .agent-benefits {
            list-style: none;
        }

        .agent-benefits li {
            padding: 10px 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .agent-benefits li::before {
            content: "💰";
        }

        /* 联系我们与底部 */
        .contact-box {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
        }

        .contact-details {
            background-color: var(--bg-white);
            padding: 40px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
        }

        .contact-list {
            list-style: none;
            margin-top: 30px;
        }

        .contact-list li {
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .contact-list span.icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
        }

        .qr-card {
            background-color: var(--bg-white);
            padding: 30px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            text-align: center;
        }

        .qr-card img {
            max-width: 160px;
            margin: 20px auto;
            border: 1px solid var(--border-color);
            padding: 5px;
            border-radius: 8px;
            display: block;
        }

        /* 页脚 */
        footer {
            background-color: var(--dark);
            color: #94a3b8;
            padding: 60px 0 30px 0;
            border-top: 4px solid var(--primary);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            padding-bottom: 40px;
            margin-bottom: 30px;
        }

        .footer-logo-desc p {
            margin-top: 15px;
            font-size: 0.9rem;
            line-height: 1.8;
        }

        .footer-links h4 {
            color: white;
            margin-bottom: 20px;
            font-size: 1.1rem;
        }

        .footer-links ul {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: #94a3b8;
        }

        .footer-links a:hover {
            color: var(--primary);
        }

        .friendship-links {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .friendship-links a {
            padding: 6px 12px;
            background-color: rgba(255, 255, 255, 0.05);
            border-radius: 4px;
            font-size: 0.85rem;
            color: #94a3b8;
        }

        .friendship-links a:hover {
            background-color: var(--primary);
            color: white;
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            flex-wrap: wrap;
            gap: 15px;
        }

        /* 浮动客服入口 */
        .floating-kefu {
            position: fixed;
            right: 20px;
            bottom: 30px;
            z-index: 999;
            background-color: var(--primary);
            color: white;
            padding: 12px 20px;
            border-radius: 30px;
            box-shadow: 0 4px 15px rgba(0, 200, 83, 0.4);
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
        }

        .floating-kefu:hover {
            background-color: #00B0FF;
            transform: scale(1.05);
            color: white;
        }

        .floating-kefu-modal {
            display: none;
            position: fixed;
            right: 20px;
            bottom: 90px;
            background-color: white;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.15);
            padding: 20px;
            z-index: 1000;
            width: 250px;
            text-align: center;
        }

        .floating-kefu-modal img {
            width: 150px;
            height: 150px;
            margin: 10px auto;
        }

        .floating-kefu-modal h4 {
            color: var(--dark);
            margin-bottom: 5px;
        }

        .floating-kefu-modal p {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 响应式媒体查询 */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                margin-top: -30px;
            }
            .grid-3, .solutions-grid, .case-grid, .price-grid, .reviews-grid, .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .network-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .production-split, .training-split, .agent-grid, .contact-box, .tech-box {
                grid-template-columns: 1fr;
            }
            .steps-container {
                flex-wrap: wrap;
            }
            .step-item {
                flex: none;
                width: 48%;
                margin-bottom: 30px;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: white;
                flex-direction: column;
                padding: 20px;
                border-top: 1px solid var(--border-color);
                box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            }
            .nav-menu.active {
                display: flex;
            }
            .menu-toggle {
                display: flex;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .grid-3, .solutions-grid, .case-grid, .price-grid, .reviews-grid, .news-grid, .network-grid {
                grid-template-columns: 1fr;
            }
            .step-item {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .evaluation-box {
                padding: 30px 20px;
            }
        }